ATLAS NSW sTGC muon detector electronic integration and commissioning

The most challenging ATLAS Phase I upgrade project during Long Shutdown 2 (2019-2021) is the New Small-Wheel (NSW) for Muon Spectrometer upgrade. The main purpose of the NSW upgrade is to improve the performance of muon triggering and precision tracking for HL-LHC runs. The NSW detector system is composed of 16 layers of MicroMegas and small-strip Thin Gap Chambers (sTGC) detectors with 2.4 million readout channels and a total surface area of more than 2,500 $m^2$. This presentation focuses on the electronic integration and commissioning of sTGC detectors at CERN, including a summary of the progress achieved, the problems encountered during electronic testing and the various solutions discovered.